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W. B. BAKER & H. E. PRIDMORE HARVESTER FRAME.

No. 442,504. Patented Dec. 9, 1890.

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W. R. BAKER 86-11. E. PRIDMORE. HARVESTER FRAME.

No. 442,504. Patented Dec. 9, 1890.

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W. R. BAKER & H. E. PRIDMORE.

HARVESTER FRAME.

No. 442,504. Patented Dec. 9, 1890.

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NiTnn STATES PATENT OFFICE.

\YILLIAM It. BAKER AND HENRY .lf- PRIDMORE, OF CHICAGO, ILLINOIS,ASSIGNORS TO THE MCCORMICK IIARV ISTING MACHINE COMPANY, OF

SAME PLACE.

HARVESTER-FRAM E.

SPECIFICATION forming part of Letters Patent No. 442,504, dated December9, 1890.

Application filed July 10, 1886, Serial No. 207,666. (No model.)Patented in England June 8, 1886,1l'0. 7,693.

To all whom it nmy concern:

Be it known that we, WILLIAM R. BAKER and HENRY E. PRIDMORE, citizens ofthe United States of America, both residing at Ohicago, in the county ofCool; and State of Illinois, have jointly invented certain new anduseful Improvements in Harvester-Frames, (for which Letters Patent ofthe Kingdom of Great Britain, No. 7,693, were granted with our knowledgeand consent on the 8th day of June, 1886,) of which the following is aspecification.

The base-frame of harvesters, especially those which have an elevatorand support antomatic binding apparatus, carries an enormous weight, andis subject to great torsional strain, which tend to twist it anddisorganize the mechanism mounted upon it. lleretofore this frame hasgenerally made been of wood; but in one or two instances, perhaps, thatportion immediately beneath the binding apparatus and constituting thewheel-frame has been of heavy metal castings, and in at least oneinstance the base-frame has been made of gaspipe united by T-joints andelbow-couplings. Tubular metal bars round in cross-section have beenemployed upon the binder attachment on account of their strength andlightness, to afford means for the adjustable attachment to theelevator-frame, and for this purpose have been found eminently suitable,their cylindrical shape offering no objection, but rather facilitatingsuch adjustable attachment; but although we are well aware that suchapplication has been heretofore proposed we have found that this verycylindrical outline renders them unsuitable for use in a base-frame towhich other and heavier framework is to be applied, and upon whichtremendous torsional strain will come, since the fastening-bolts willreceive no assistance and will be in nowise braced by this shape, butmust themselves alone sustain the entire strain.

In the present invention we propose to replace the base-sills orbase-sills and girts of the harvester-frame by sills and girts oftubular metal, square or rectangular, or practically so, incross-section, which will afford the 'same facility for attachmentbetween 'ihemfl selves and other parts of the frame-work and the same orincreased strength of joint at such points of attachment as do thesquare wooden beams and timbers heretofore used for the purpose, andwill therefore involve no further reorganization of the superposedparts. Since the greatest weight and the greatest strain are in theimmediate vicinity of the main wheel,which is located under theelevator, it will ordinarily be found snfiicient to employ these tubularbars of rectangular cross-section in the base-frame of the elevatoralone, this also including the wheel-frame, leaving the front and rearsills of the plat form-frame of wood, as heretofore, overlapping andbolted to the front and rear sills of the elevator-frame,and theinvention will be described as thus constructed, without, however,intending to limit ourselves in anywise thereby.

In the drawings, Figure 1 is a top plan view of a harvester-frame clnbodyin gour invention, the platform end being broken away and the A-fralneof the elevator removed; Fig. 2, a rear elevation; Fig. 3, a frontelevation embracing the parts and mechanism shown in the first; Fig. 4,a side elevation, as indicated by arrows and correspondingly-nnmberedseetion-line in the first, second, and third; Fig. 5, an enlarged detailview of the joint between the inner girt at the foot of the elevator,the front elevator-sill, and the angle-iron fingerbar, showing the chairand independent spacing-block at that point; Fig. 6, an enlarged detailview of the joint between the next outer girt, or that which constitutesthe inner lateral bar of the wheel-frame, the front elevatorsill, andthe angle-iron finger-bar. showing in.

perspective the combined chair and spacingblock at that point; and Fig.7, an enlarged perspective view of one of the chairs interposed betweengirts and sills at their points of junction.

A is the rear sill of the platform-frame, and 13 the front sill, both ofwhich may be formed of wood in the usual way, so that the fingerbar andwooden guide-bars of the apron may be readily and cheaply appliedthereto.

C is the finger-bar of angle-iron, with its horizontal ledge uppermostand somewhat below the upper edge of the front sill and eX- tendingtherealong to the wheel-frame. Overlapping the rear platform-sill at itsouter or stubble end and on its upper side, and secured thereto by boltsd, is the rear sill D of the elevator-frame, formed as a hollow bar ofrolled or forged iron rectangular in cross-section. The frontplatform-sill and fi nger-bar attached thereto are likewise overlappedby a tubular bar E, of rolled or forged iron, also rectangular incross-section, which extends therefrom a sufficient distance toconstitute the front sill of the elevator-frame. The rear elevator-sillis in line with the rear platform-sill; but it is preferred that thefront elevator-sill shall flare somewhat from the platform-sill andfinget-bar, to which latter it is attached by bolts 6, as presentlyexplained, to give more space for the main wheel and binding attachment.

A spacing-block E is interposed between the front elevator-sill and theangle-iron finger-bar at the point where they overlap and are boltedtogether adjacent to the innermost girt, and a second spacing-block E isalso employed to connect them and preserve their vertical distance apartat the point where the next outer girt, or that one constituting theinner lateral bar of the wheel-frame, intersects them, thus providing aspace for the play of the sway-bar where such bar is located beneath theA-frame of the elevator. It follows from the oblique arrangement ofthefront elevator-sill that the joints between the said sill andfinger-bar, and also between them and the girts, will differ more orless from the others, as will be directly explained. The girts orcross-bars of this frame may, with some beneficial effect, he ofangle-iron or other metal bar;. but herein are also rectangular metaltubes or square pipes, and although they may be bolted directly to thefront and rear elevator-sills, it is deemed advisable to interpose metalchairs F,Whicl1,-

for lightness, for strength, and to give a certain elasticity to theconnection, are made as rectangular frames hollowed out in the center,and having upon their upper faces seats f to receive the cross-girts,while other seats f at right angles to the foregoing, for the rear sill'and at a suitable angle for the front sill, saddle and closely embracesaid sills. For

the innermost cross-girt G, which extends from foot to foot of the innerelevator-struts beneath the A-frame, chairs are placed in positionadjacent to the extreme inner end of the elevator-sills and above anoffsetting extension of the seat in the front spacingblock. Then asecuring-boltis passed through said girt, through the central space ofthe chair, and through the rear sill, a single bolt clamping all threepieces together. At the front a single bolt passes through the girt,through the chair, through the inner end of the front metal sill, andthrough the offset from the spacing-block, thus completing the fasteningat that point. The two girts H H, constituting the lateral bars of thewheelframe and that have seen red to them the rackstandards 72, 7L',inwhich the axle is mounted, are likewise attached to the front and rearelevator-sills by bolts passing through the girts, through the chairs,and through the sills, except at the forward end of the inside girt ofthe pair where the bolt passes through the girt, the spacing-block, andthe upper flange of the finger-bar, and a fourth girt I at the extremestubble side of the machine is also secured by a bolt passing througheach end of the girt and the chair at that end and through the sills.

The spacing-blocks for the front sills may be either of wood, asheretofore used, or of metal; but it is much preferred to make them asmetal brackets which should be hollow or of skeleton outline to gainlightness so far as consistent with the requisite strength. The innerspacing block or bracket, or that adjacent to the front insideelevator-strut, is formed with a foot *6, which rests upon the upper orhorizontal flange of the angle-iron finger-bar, and it has a snug t" tocome against the rear of the bar, and may have a second snug to embracethe front edge thereof. It also has a seat i to receive the end of thefront elevator-sill, and since this sill is in the present structureoblique to the finger-bar and it is not found convenient to arrange theinnermost girt precisely above the intersection of the finger-bar andsill, the seat is prolonged by means of an offset '6 at the stubble sideto come directly beneath the front chair of said girt, and a bolt ispassed through this ofiset or prolongation, through the front sill,chair, and girt, to. unite them, as already explained. A second boltpasses through the end of the front sill at the side of said chair,through the spacing-block and the horizontal flange of the finger-baratthe intersecting points, thus completing the joint.

The spacing-block for the joint between the front'platform-sill orfinger-bar and the inner girt H of the wheel-frame is best made as anintegral part of the chair at that point,

when, as here, the obliquity of the front elevator-sill causes suchrelation of parts as to permit it. It is then formed with a foot 1', toplant upon the horizontal flange of the fingerbar, a snug taking overthe front edge of said flange, and a forwardly-projectingoifset t orcontinuation of the girt-seat t which is undercut to afford a seat 1'for the oblique sill,this latter running in front of the body of theblock. bolts, one of which passes through the girt, the chair, the blockor spacer behind the oblique sill, and the upper flange of thelinger-bar, and the other through the girt, the offset, and the obliquesill. These bolts also serve to fasten the clip I for the tonguepivot tothe upper face of the girt.

In order to support the front outer elevator-strut K, the chair, whichreceives the forward end of the outer bar of the wheelframe, will beformed with an offsetting seat The parts are united by two ICC.

- usual bearing bracket or bridge L, connecting the two outside girtsadjacent to the rear sill, and preferably rests upon a seat formed uponsaid bridge alongside of the flange, but may of course rest upon anyother suitable contiguous part of the frame.

The rack-standards or bridle-brackets for the main axle,holted, asbefore stated, to the lateral bars or girts of the WheeLframe, have eachone offsetting car at at or near the top, (best arranged on the sideaway from the wheel,) through which ears pass truss-rods M, fixed attheir rear ends to said girts above or immediately adjacent to the rearsill, and at their front ends threaded and passing through lugs m fromthe chairs at the junction of these girts with the oblique sill, beyondwhich lugs they receive nuts miwhereby they may be tightened to servetheir double purpose of bracing the rack-standards and trussing the mainframe.

Ve claim as our invention- 1. The combination, to form a harvesterbase-frame, of tubular metal rear and front sills rectangular incross-section, and metal girts uniting said rear and front sills.

2. The combination, to form a harvester base-frame, of metal rear andfront sills and metal girts uniting said rear and front sills, bothsills and girts being tubular and rectangular in cross-section.

3. The combination substantially as here inbefore set forth,to form aharvester-frame, of metal rear and front sills tubular and rectangularin cross-section, metal girts extending from the rear sill to the frontsill, chairs interposed between the girts and the sills and having seatsfor their reception, and bolts passing through the sills, chairs, andgirts.

at. The combination, substantially as hereinbefore set forth, of themetal rear and front sills and metal girts tubular and rectangular incross-section, the skeleton chairs having seats to embrace and receivethe sills and girts, and the bolts passing through the girts, chairs,and sills.

5. The combination, substantially as hereinbefore set forth, of the rearand front platform-sills, the front and rear clevatonsills formed oftubular metal, rectangular in crosssection, overlapping theplatform-sills and secured thereto, and the tubular metal girts, alsorectangular in cross-section, uniting said metal front and rear sills,and also at the inner side uniting the platform'sills.

6. The combination, substantially as hereinbefore set forth, of theplatform-sills, the angle-iron finger-bar, the metallic rearelevator-sill overlapping and in line with the rear platform-sill, themetallic front elevatorsill flaring outwardly from the frontplatform-sill and finger-bar, the metallic inner cross-girt secured atits ends to said platform and elevator sills and to the finger-bar, andthe adjacent cross-girt secured at its front end to the oblique frontsill and fingerbar and at its rear end to the rear elevatorsill, saidelevator-sills and girts being tubular and rectangular in cross-section.

7. The combination, substantially as hereinbefore set forth, of thewooden front and rear platform-sills, the angle-iron finger-bar securedto said. front sill, the tubular front elevator-sill formed of metal andrectangular in cross-section, overlapping the front platform-sill andfinger-bar, the tubular rear elevator-sill likewise formed andoverlapping the rear platform-sill, the inner cross-girt secured to theoverlapping front sill by bolts passing through said girt, the metallicelevator-sill, and the horizontal flange of the finger-bar and to therear sills bya bolt passing through the girt and both sills, and theadjacent girt likewise formed and secured at its front end by boltspassing through girt, elevator-sill, and finger-bar, and at i ts rear bya bolt passing through girt and sill.

8. The combination, substantially'as hereinbefore set forth, of thefront and rear platform-sills, the angle-iron finger-bar secured to saidfront sill, the forwardly-flaring tubular front elevator-sill formed ofmetal rectangular in cross-section and overlapping the frontplatform-sill and the finger-bar at its inner end, the rear metallicelevator-sill also formed as a rectangular tube overlapping the rearplatform-sill and in line therewith, the crossgirts likewise formed, andthe bolts uniting the forward end of the inner girt to the frontelevator-sill and finger-bar, its rear end to the two rear sills, theforward end of the adjacent girt to said front elevator-sill andfinger-bar and its rear end to the rear elevator-sill, and the outer twogirts to the two elevator-sills.

9. The combination of the oblique front elevator-sill, the cross-girt G,the interposed chair, the finger-bar, the spacing'block with itsoffsetting seat for the elevator-sill, interposed between the latter andthe finger-bar, a bolt uniting said girt, elevator-sill, chair, andblock, and a bolt uniting said elevatorsill, block, and linger-bar.

10. The inside front spacing-block formed with foot 2' and snug i, toplant upon the angle-iron fin ger-bar, and a seat for the obliqueelevator-sill offsetting in the direction of the length of the sill, forthe purpose described.

11. The combination of the oblique front elevator-sill, the frontplatform-sill, and angle-iron finger-bar, the cross-girt II, a chair'having seats for said girt and elevator-sill and extended into aspacing-block, with foot planted upon the linger-bar, a bolt uniting thegirt, chair, and elevator-sill, and a bolt uniting girt, block, andfinger-bar.

12. The chair at the junction of the oblique elevator-sill and girt ll,formed integral with a spacing-block and having a seat for thefraine-girt, the foot 2', to plant upon the finger-bar, and theextension 2' with its seat for the oblique elevator-sill.

13. The chair at the junction of the oblique elevator-sill and girt I-I,formed integral with thespacing-block and having seats for theframe-girt and elevator-sill, and a foot to plant upon the finger-bar,arranged as described, and an offsetting lug for the reception of atrnss-rod.

14. The combination of the oblique front elevator-sill and angle ironfinger-bar, the cross-girt H, the spacing-block at their intersection,havingafootplanted upon said'fingerbar, form ed and also integral withzachair, and having seats forsaidgirt and elevator-sill, a bolt uniting.the girt, chair, and elevator-sill, a bolt uniting girt, block, andfinger-bar, and the-clipfor'the tongue-pivot clamped to the upper faceof the girt by these'two bolts.

15.. The combination, with the front and rear elevator-sills, thegirtsforming the lat-- 'eral bars of the wheel-frame, the interposed chairs,and the rack-standards bolted to the girts, of the truss-rods passingthrough ears at or near the top of the standards and fixed at one end tothe corresponding end of said girtsand at the other end passing throughlugs projecting from the chairs at that end of the girts and receivingnuts beyond.

16. The combination of the frontelevatorsill, the cross-girt'H', theinterposed chairhaving an offsetting seat 7c and-flange 1c ,and thefrontlontside elet ator-strut stepped in said seat and bolted to theflange.

17. The combination of the rear elevatorsill, the outside cross-girt,the adjacent girl:

or lateral barof the Wheel-frame, the bearing

